Tag with radio communication function, display apparatus and radio communication system

Abstract

According to an embodiment, a tag with a radio communication function includes a tag substrate, and a radio communication apparatus provided on the front surface of the tag substrate. The radio communication apparatus includes a storage unit configured to store data, a first and a second antennas, a wireless power receiver, and a first radio communicator. The wireless power receiver is configured to receive power by a first radio signal through the first antenna. The first radio communicator is configured to transmit the data by a second radio signal through the second antenna by using the power received by the wireless power receiver.

1 . A tag with a radio communication function comprising:
 a tag substrate; and   a radio communication apparatus provided on the front surface of the tag substrate,   wherein the radio communication apparatus comprises   a storage unit configured to store data,   a first and a second antennas,   a wireless power receiver configured to receive power by a first radio signal through the first antenna, and   a first radio communicator configured to transmit the data by a second radio signal through the second antenna by using the power received by the wireless power receiver.   
     
     
         2 . The tag with a radio communication function of  claim 1 , comprising:
 an adhesive layer provided at a rear surface of the tag substrate, the adhesive layer being able to attach the tag substrate to an object apparatus to be attached,   wherein the first and the second antennas are provided to face the adhesive layer with the tag substrate in between.   
     
     
         3 . The tag with a radio communication function of  claim 1 , wherein
 the frequency of the first radio signal is lower than the frequency of the second radio signal,   the first antenna is a planar coil comprising a space at its center, and   the second antenna is smaller than the first antenna and the second antenna is provided in the space at the center of the first antenna.   
     
     
         4 . The tag with a radio communication function of  claim 3 , wherein
 the radio communication apparatus comprises a cylindrical partition wall configured to surround the second antenna in the space at the center of the first antenna, the cylindrical partition wall being formed of a magnetic material and reflecting the first radio signal.   
     
     
         5 . A display apparatus configured to wirelessly communicate with a tag with a radio communication function,
 the tag with a radio communication function comprising a tag substrate and a radio communication apparatus provided on the front surface of the tag substrate, the radio communication apparatus comprising a storage unit configured to store data, a first and a second antennas, a wireless power receiver configured to receive power by a first radio signal through the first antenna, and a first radio communicator configured to transmit the data by a second radio signal through the second antenna by using the power received by the wireless power receiver,   the display apparatus comprising:   a display unit;   a frame configured to support the display unit, the frame comprising a tag arrangement region where the tag with a radio communication function is arranged;   a third and a fourth antennas provided to the tag arrangement region of the frame;   a wireless power transmitter configured to transmit power by the first radio signal through the third antenna;   a second radio communicator configured to receive the data by the second radio signal through the fourth antenna; and   a controller configured to cause the display unit to display an image based on the data received by the second radio communicator.   
     
     
         6 . The display apparatus of  claim 5 , wherein
 the frame comprises a corner portion, and   the tag arrangement region is provided at the corner portion.   
     
     
         7 . The display apparatus of  claim 5 , wherein
 the data comprises icon data and image data,   the controller causes the display unit to display an icon based on the received icon data, and when the icon displayed on the display unit is selected by a user, the controller causes the display unit to display an image based on the received image data.   
     
     
         8 . The display apparatus of  claim 7 , wherein
 the image data is video data,   the second radio communicator does not store the received video data, and   the controller causes the display unit to display a video based on the received video data.   
     
     
         9 . The display apparatus of  claim 7 , wherein
 the image data is video data,   the second radio communicator stores the received video data, and   after the second radio communicator receives all the video data, the controller causes the display unit to display a video based on the received video data.   
     
     
         10 . The display apparatus of  claim 7 , comprising:
 a plurality of pair of the third and the fourth antennas; and   a plurality of the second radio communicator,   wherein the frame comprising a plurality of the tag arrangement region,   each pair of the third and the fourth antennas is provided to a corresponding tag arrangement region,   the wireless power transmitter transmits power through each of the third antennas,   each of the second radio communicators receives the data from the tag with a radio communication function arranged to a corresponding tag arrangement region through a corresponding fourth antenna,   the data comprises icon data and image data,   the controller displays an icon based on the received icon data in a region near the tag arrangement region, where the fourth antenna that receives the icon data is provided, on the display unit, and   when the icon displayed on the display unit is selected by the user, the controller causes the display unit to display an image based on the received image data corresponding to the selected icon.   
     
     
         11 . The display apparatus of  claim 10 , wherein
 the controller causes the wireless power transmitter to continuously transmit power through the third antenna corresponding to the selected icon, and   the controller causes the wireless power transmitter not to transmit power through the third antenna corresponding to the icon that is not selected.   
     
     
         12 . The display apparatus of  claim 5 , wherein
 the frequency of the first radio signal is lower than the frequency of the second radio signal,   the first antenna is a planar coil including a space at its center,   the third antenna is a planar coil including a space at its center,   the second antenna is smaller than the first antenna and the second antenna is provided in the space at the center of the first antenna, and   the fourth antenna is smaller than the third antenna and the fourth antenna is provided in the space at the center of the third antenna.   
     
     
         13 . The display apparatus of  claim 12 , wherein
 the radio communication apparatus comprises a cylindrical partition wall configured to surround the second antenna in the space of the first antenna, the cylindrical partition wall formed of a magnetic material and reflecting the first radio signal, and   the display apparatus comprises a cylindrical partition wall configured to surround the fourth antenna in the space of the third antenna, the cylindrical partition wall formed of a magnetic material and reflecting the first radio signal.   
     
     
         14 . A radio communication system comprising:
 a tag with a radio communication function; and   a display apparatus configured to wirelessly communicate with the tag with a radio communication function,   wherein the tag with a radio communication function comprises   a tag substrate, and   a radio communication apparatus provided on the front surface of the tag substrate,   wherein the radio communication apparatus comprises   a storage unit configured to store data,   a first and a second antennas,   a wireless power receiver configured to receive power by a first radio signal through the first antenna, and   a first radio communicator configured to transmit the data by a second radio signal through the second antenna by using the power received by the wireless power receiver,   wherein the display apparatus comprises   a display unit,   a frame configured to support the display unit, the frame comprising a tag arrangement region where the tag with a radio communication function is arranged,   a third and a fourth antennas provided to the tag arrangement region of the frame,   a wireless power transmitter configured to transmit power by the first radio signal through the third antenna,   a second radio communicator configured to receive the data by the second radio signal through the fourth antenna,   a controller configured to cause the display unit to display an image based on the data received by the second radio communicator.   
     
     
         15 . The radio communication system of  claim 14 , wherein
 the first antenna faces the third antenna with the tag substrate in between, and   the second antenna faces the fourth antenna with the tag substrate in between.   
     
     
         16 . The radio communication system of  claim 14 , wherein
 the frequency of the first radio signal is lower than the frequency of the second radio signal,   the first antenna is a planar coil comprising a space at its center,   the third antenna is a planar coil comprising a space at its center,   the second antenna is smaller than the first antenna and the second antenna is provided in the space at the center of the first antenna, and   the fourth antenna is smaller than the third antenna and the fourth antenna is provided in the space at the center of the third antenna.   
     
     
         17 . The radio communication system of  claim 16 , wherein
 the radio communication apparatus comprises a cylindrical partition wall configured to surround the second antenna in the space of the first antenna, the cylindrical partition wall formed of a magnetic material and reflecting the first radio signal, and   the display apparatus comprises a cylindrical partition wall configured to surround the fourth antenna in the space of the third antenna, the cylindrical partition wall formed of a magnetic material and reflecting the first radio signal.   
     
     
         18 . The radio communication system of  claim 14 , wherein
 the tag with a radio communication function comprises an adhesive layer provided at a rear surface of the tag substrate, the adhesive layer being able to attach the tag substrate to an object apparatus to be attached, and   the first and the second antennas are provided to face the adhesive layer with the tag substrate in between.   
     
     
         19 . The radio communication system of  claim 14 , wherein
 the frame comprises a corner portion, and   the tag arrangement region is provided at the corner portion.   
     
     
         20 . The radio communication system of  claim 14 , wherein
 the data comprises icon data and image data, and   the controller causes the display unit to display an icon based on the received icon data, and when the icon displayed on the display unit is selected by a user, the controller causes the display unit to display an image based on the received image data.